Home / 22,587.20-31,168.16-12,516.24

Finding the Fourth Proportional to 22,587.20, 31,168.16 and 12,516.24

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Solution

The fourth proportional to 22,587.20, 31,168.16 and 12,516.24 is: 17,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.20 : 31,168.16 = 12,516.24 : x
  2. Step 2: Convert to fraction form
    22,587.20/31,168.16 = 12,516.24/x
  3. Step 3: Cross multiply
    22,587.20x = 31,168.16 × 12,516.24
  4. Step 4: Simplify right side
    22,587.20x = 390,108,170.92
  5. Step 5: Solve for x
    x = 390,108,170.92/22,587.20
  6. Step 6: Final answer
    x = 17,271.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.